The N70400 is an AS568-400 black Neoprene (Chloroprene) 70 Shore A O-Ring measuring an inside diameter of 1.35 in (34.29 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 1.9 in (48.26 mm). This o-ring compresses into its gland to block fluid or gas migration across a joint.
The material holds up against moderate petroleum oil exposure, sunlight and salt spray, and mild acids. That behavior comes from the compound itself: Neoprene (Chloroprene) delivers dependable general-purpose sealing in exposed installations and strong performance in refrigeration circuits. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).
You will find this material specified across weather sealing and enclosures, general industrial, and HVAC and refrigeration.
Order part number N70400, sold individually. Nominal inside diameter is listed as 1 3/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description -400 BLACK CHLOROPRENE 70D O-RING
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 1.35 inch (34.29 mm)
Actual Outside Diameter 1.9 inch (48.26 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity